160641001 has 4 divisors (see below), whose sum is σ = 161042004. Its totient is φ = 160240000.

The previous prime is 160640989. The next prime is 160641017. The reversal of 160641001 is 100146061.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100146061 = 157 ⋅637873.

It can be written as a sum of positive squares in 2 ways, for example, as 102515625 + 58125376 = 10125^2 + 7624^2 .

It is a cyclic number.

It is not a de Polignac number, because 160641001 - 2¹⁵ = 160608233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 160641001.

It is not an unprimeable number, because it can be changed into a prime (160641031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199900 + ... + 200701.

It is an arithmetic number, because the mean of its divisors is an integer number (40260501).

Almost surely, 2^160641001 is an apocalyptic number.

It is an amenable number.

160641001 is a deficient number, since it is larger than the sum of its proper divisors (401003).

160641001 is an equidigital number, since it uses as much as digits as its factorization.

160641001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401002.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 160641001 is about 12674.4231032422. The cubic root of 160641001 is about 543.6075341565.

Adding to 160641001 its reverse (100146061), we get a palindrome (260787062).

The spelling of 160641001 in words is "one hundred sixty million, six hundred forty-one thousand, one".